6533b7dcfe1ef96bd12720bf
RESEARCH PRODUCT
Fabrication of a Silicide Thermoelectric Module Employing Fractional Factorial Design Principles
Raphael SchulerDaniel Nilsen WrightM. StangeJoachim Moe GraffMatthias SchradeOle Martin LøvvikOle Martin LøvvikGustavo Castillo-hernandezXin SongJohannes De BoorGunstein SkomedalErik Enebakksubject
fractional factorial designFabricationMaterials sciencesilicide thermoelectric modulebusiness.industryContact resistanceFractional factorial designCondensed Matter PhysicsThermoelectric materialsElectronic Optical and Magnetic MaterialsTaguchi methodschemistry.chemical_compoundThermoelectric generatorchemistryThermoelectric effectSilicideMaterials ChemistryOptoelectronicsElectrical and Electronic Engineeringbusinessdescription
AbstractThermoelectric modules can be used in waste heat harvesting, sensing, and cooling applications. Here, we report on the fabrication and performance of a four-leg module based on abundant silicide materials. While previously optimized Mg2Si0.3Sn0.675Bi0.025 is used as the n-type leg, we employ a fractional factorial design based on the Taguchi methods mapping out a four-dimensional parameter space among Mnx-εMoεSi1.75−δGeδ higher manganese silicide compositions for the p-type material. The module is assembled using a scalable fabrication process, using a Cu metallization layer and a Pb-based soldering paste. The maximum power output density of 53 μW cm–2 is achieved at a hot-side temperature of 250 °C and a temperature difference of 100 °C. This low thermoelectric output is related to the high contact resistance between the thermoelectric materials and the metallic contacts, underlining the importance of improved metallization schemes for thermoelectric module assembly.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-04-23 |